Energy Startups
5,967 companies tagged Energy, with their investors and founders.
Power to Hydrogen develops Anion Exchange Membrane (AEM) electrolyzer systems that convert water and AC power into high-pressure hydrogen for storage and hydrogen carriers like methanol and ammonia. The company is scaling MW-level electrolyzers using low-cost, readily available components while maintaining dynamic integration with renewable energy sources.
9 investors
Public Grid simplifies access to household energy efficiency actions and connects individuals with their neighbors to collectively reduce emissions and save money. The platform serves households seeking to take environmental action without complexity.
9 investors
Sepion develops advanced polymer separator technology for batteries and other applications including water separation and materials recovery. The company commercializes research from Berkeley Lab with manufacturing and production capabilities in Silicon Valley.
9 investors
SolarSquare designs and installs rooftop solar panel systems for homes, housing societies, and businesses across India, handling inspection, installation, subsidy, financing (EMI plans), and post-installation maintenance. It positions itself as a residential rooftop solar EPC provider offering savings guarantees and long-term service contracts.
9 investors
Svante builds filters and modular rotary contactor machines that capture and remove CO2 from industrial emissions and directly from the air. The company (formerly Inventys Inc.) serves heavy-emitting industries such as cement, oil, and energy with carbon capture and removal technology, including its proprietary metal organic framework (MOF) sorbent.
9 investors
Syzygy Plasmonics converts waste biogas and renewable electricity into sustainable aviation fuel using proprietary photocatalytic technology. The company serves airlines and fuel buyers seeking low-carbon alternatives to conventional jet fuel.
9 investors
Thea Energy develops fusion energy systems based on a stellarator architecture that replaces complex 3D magnet coils with arrays of mass-manufacturable planar magnets controlled by software. Its first system, Eos, is a neutron source stellarator intended to demonstrate fusion performance and de-risk its planned fusion power plant, Helios.
9 investors
Treehouse is an electrical contractor that combines skilled trades with software to deliver electrification projects such as home electrification and decarbonization installations. It operates nationally across the United States, serving residential customers and partners.
9 investors
Urbint builds AI and predictive analytics software that helps utilities, energy providers, and critical infrastructure companies predict and prevent incidents such as field safety hazards, storm impacts, and excavation damages. Now part of Itron, the company serves the North American energy, utility, and telecommunications sectors with operational resilience solutions.
9 investors
WeaveGrid provides software and grid management solutions that help utilities integrate electric vehicle charging and distributed energy resources without expanding infrastructure. The company serves utilities managing electrification at scale in the energy sector.
9 investors
RigUp (operating under Workrise) provides vendor management, staffing and payroll, and bid management software for the energy industry in the US and Canada. The company serves energy sector businesses managing contractors, workforce networks, and procurement operations.
9 investors
XGS Energy develops a proprietary solid-state, closed-loop geothermal system that uses thermally conductive materials and a pipe-in-pipe heat exchanger to generate clean, round-the-clock power without dependence on water or specific rock geology. The company builds and finances gigawatt-scale geothermal power projects for energy infrastructure and data center customers.
9 investors
Airloom engineers next-generation utility-scale wind turbines designed for mass production and deployment in diverse locations, offering low-cost, reliable energy generation with reduced infrastructure requirements.
8 investors
Ambyint offers an AI-powered platform for optimizing oil and gas production, using physics-informed models and analytics to monitor wells, detect anomalies, and manage controller setpoints. It serves production operators, optimizers, and engineers managing large well portfolios, integrating with existing SCADA and production accounting systems.
8 investors
Ampaire develops hybrid-electric propulsion systems for aircraft, with the AmpDrive technology deployed across multiple aircraft types to reduce fuel consumption, maintenance costs, and noise emissions. The company targets the aviation industry with technology designed for scaling from current hybrid-electric operations to future mass-market electric aircraft.
8 investors
AmpUp offers an EV charging software and management solution for private commercial locations with long vehicle dwell times, such as workplaces, multi-unit dwellings, and fleet depots. The company operates in the commercial Level 2 EV charging market in the United States.
8 investors
Arbor provides a platform that helps households access renewable electricity at lower costs while reducing energy-related complexity. The company targets individual consumers seeking clarity and savings in their energy purchases.
8 investors
AssetCool builds robotic systems, including its Capacity-1 line robots, that apply capacity-enhancing coatings to existing overhead power lines to increase grid capacity without lengthy outages or reconductoring. It serves grid operators and power utilities working on energy transition and grid upgrades.
8 investors
Atomic Alchemy builds privately-owned nuclear reactors dedicated to radioisotope production, including Molybdenum-99 used in most nuclear medicine procedures. It aims to supply radiopharmaceutical materials for diagnostic imaging, biological tracers, and cancer treatments.
8 investors
Aurora Solar makes a cloud-based platform for designing, selling, and delivering solar energy projects, including 3D modeling with shade and tilt analysis, proposal generation, and lead capture tools. It serves solar installers and sales teams to speed up system design and improve proposal accuracy.
8 investors
Bedrock Energy develops drilling technology and data algorithms for designing and installing geothermal borehole fields used for building heating and cooling. It serves real estate developers, building owners, and builders, offering end-to-end geothermal projects including design, drilling, and energy financing.
8 investors
Buzz Solutions provides visual AI software that analyzes drone and camera inspection imagery to automate asset monitoring and anomaly detection across energy infrastructure including transmission lines, distribution networks, substations, and solar installations.
8 investors
Chakr Innovation develops emission control and air quality technologies for industrial and urban environments in India. The company designs retrofit devices and monitoring systems that reduce particulate matter and nitrogen oxide emissions from diesel generators while supporting regulatory compliance.
8 investors
ChargeLab develops EV charging management software and a programmable charging platform used by EV drivers, installers, and software developers. Its tools handle charger deployment, load optimization for grid capacity, cost, or carbon, and bi-directional communication between vehicles and the grid across North America.
8 investors





















